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Acceptable Use Policy

PrimeCal's Acceptable Use Policy is Section 11 of the Terms of Service, published on the marketing site — this page points there.

Accessibility Guidelines

How PrimeCal supports keyboard navigation, screen readers, and color contrast — and how to set up your calendar for the best accessible experience.

Action Reference

Complete enumeration of all automation action types in PrimeCal, with implementation status and required config fields.

Actions Overview

Understand the action types PrimeCal automations can run after a trigger matches.

Agent API

Code-backed reference for agent profile management, scoped permissions, API keys, and PrimeCal MCP runtime access.

AI Agents (MCP) Overview

What the PrimeCal MCP server is, what it exposes, and how to start with secure agent profiles, organisation scopes, and API keys.

All-Day Events

Create and manage all-day events in PrimeCal for holidays, deadlines, trips, and anything that spans a full day without a specific time.

Answering an Invitation

What happens when someone invites you to a people group or to their plan, and how to accept or decline - on any plan, the Free plan included.

API Overview

Swagger-style overview of the PrimeCal non-admin backend API surface, grouped by real product areas.

API Rate Limits

PrimeCal API rate limit tiers, per-category limits, response headers, and how to handle a 429.

Appearance Settings

Customize PrimeCal's visual appearance — choose a theme color, adjust the calendar width, and configure how your workspace looks.

Apple Calendar and CalDAV

PrimeCal does not support CalDAV. Here is how to bring an Apple, Thunderbird, or other non-Google/Microsoft calendar into PrimeCal.

Authentication API

Code-backed reference for registration, login, onboarding, MFA, OAuth, refresh tokens, and user API key management.

Authentication Errors

Reference guide for HTTP 401 and 403 authentication/authorization error codes in PrimeCal, with causes and fixes for each.

Automation API

Code-backed reference for automation rules, audit logs, approvals, webhook triggers, and smart values.

Automation Patterns

Proven automation rule patterns for PrimeCal — color-coding, webhook integrations, and scheduled reminders that save real time.

Automation Recipes

Copyable rule configurations for Home Assistant, Slack, SMS reminders, invoicing via a middleman, and wallboard/kiosk pairing.

Automation Templates

Start faster with pre-built automation rule patterns for common calendar workflows.

Booking API

Code-backed reference for enterprise reservations, availability, public booking, Stripe-backed payment state, and legacy token booking routes.

Booking Notifications

What notifications PrimeCal sends when a reservation is made or changed, and how to extend booking alerts using the automation system.

Booking Questions and Forms

How to configure the customer information fields on your PrimeCal public booking form, and what customers see when they fill in their details.

Booking Resources

How team members and customers create reservations for PrimeCal resources — from the public booking page and from within the internal reservation board.

Buffer Time

How buffer time works in PrimeCal resource bookings, and how to use blocked events to protect personal schedule gaps.

Calendar API

Code-backed reference for calendars, calendar groups, and sharing flows.

Calendar Colors and Visibility

Use PrimeCal's 16-color system to tell calendars apart at a glance, and control which calendars are visible without deleting them.

Calendar Embedding

What calendar embedding options exist in PrimeCal today, and what is planned.

Calendar Groups

Create, rename, fill, reorder, and delete PrimeCal calendar groups without losing the calendars inside them.

Calendar Settings

Edit a calendar's name, color, and description at any time from the sidebar three-dot menu.

Calendar Sharing Issues

Troubleshoot problems with shared calendars and calendar groups in PrimeCal, including permission errors, missing shared calendars, and group sync issues.

Calendar Subscriptions

PrimeCal does not support subscribing to external .ics feeds today. Here is what to use instead.

Calendar Views

Understand how the Day, 3-day, Work week, Week, Month, Agenda and Focus views render PrimeCal calendars, events, labels, and colors.

Calendar Workspace

Create, edit, group, hide, rename, recolor, and manage calendars from the PrimeCal workspace.

Cancelling and Refunds

How to cancel a PrimeCal subscription, what happens to your access and data afterwards, and how refunds work.

Changelog

Version history for PrimeCal, listing major feature milestones and notable changes.

Checking Availability

How to see what times are free for yourself or others in PrimeCal, using calendar visibility, shared calendars, and the week view.

Choosing Your Workspace

Pick a starting persona during onboarding and fine-tune which modules appear in your navigation from Settings → Modules.

Compliance API

Code-backed reference for privacy access, exports, data-subject requests, consent updates, and policy acceptance.

Condition Reference

Complete enumeration of all automation condition fields and operators in PrimeCal.

Connecting MCP Hosts

Host-specific setup for Chrome MCP and desktop hosts (Claude Desktop, VS Code, Cursor) using PrimeCal MCP.

Connecting via OAuth (Sign In and Approve)

Connect PrimeCal to an AI assistant the same way you'd connect Google Calendar or Microsoft 365 — sign in, choose a permission level, approve, and manage the connection from Agent Settings.

Cookie Policy

The Cookie Policy governing PrimeCal is published on the marketing site — this page points there.

Creating Calendars

Create separate calendars for different areas of your life — family, work, school, hobbies — each with its own color and purpose.

Creating Events

Create events from the PrimeCal workspace, understand the shared event modal, and learn how saved events behave across the views.

Creating Resources

How to add a new bookable resource to your PrimeCal organisation — name, capacity, resource type assignment, and public booking token.

Creating Your Account

Register in PrimeCal, complete the onboarding wizard, and understand the exact fields and required decisions shown to new users.

Creating Your First Event

Use the PrimeCal event modal, understand the visible fields, and create a first event that behaves correctly in every view.

Custom Integrations

Build custom integrations with PrimeCal using the REST API, personal API keys, and automation webhooks.

Customizing Booking Pages

Configure the PrimeCal public booking page so customers see the right service choices, language controls, summary details, and payment actions.

Date and Time Formats

Configure your preferred time format (12-hour or 24-hour), week start day, and date display preferences in PrimeCal.

Deleting Calendars

Permanently remove a calendar and all its events from PrimeCal. This action cannot be undone — read what to consider first.

Developer Documentation

PrimeCal developer entry point for the full non-admin backend API, grouped by real product features.

Editing and Deleting Events

Update event details or remove events you no longer need, including how to handle changes to recurring event series.

Email Notifications

Understand which emails PrimeCal sends and how to control your email notification preferences.

Enterprise Reservation Tools For MCP

Understand the reservation and organisation MCP tools, active-organisation behavior, and permission scopes for enterprise reservation workflows.

Event API

Code-backed reference for event CRUD, recurrence, calendar-scoped queries, and event comments.

Event Sync Issues

Diagnose and fix problems where external calendar events are not appearing in PrimeCal, or where duplicate events appear after syncing.

Everyday Planning FAQ

Real-life answers about registration, calendars, groups, colors, visibility, Focus behavior, and feature navigation in PrimeCal.

Example Scenarios

Illustrative examples of how PrimeCal can organize schedules and collaboration — not published customer case studies.

Experience Modes Overview

Compare Standard, Focus, Planner, Family, Simple, and Kid Mode, and learn how to switch between them from the mode selector in the header.

External Sync

Connect Google or Microsoft calendars, choose mappings, and manage PrimeCal external sync settings.

External Sync API

Code-backed reference for Google and Microsoft calendar sync setup, OAuth callbacks, mapping, disconnect, and force-sync operations.

Family Mode

An Experience Mode for a household's shared calendar — the calendar opens on the People view, a column for each person, with who is next at a glance and big buttons for a kitchen tablet.

FAQ

Fast, real-world answers for registration, calendars, tasks, automation, sync, AI agents, privacy, access, and troubleshooting in PrimeCal.

Finding Meeting Times

How to use PrimeCal's week view and calendar visibility controls to find an open slot that works for everyone.

Focus and Scheduling

See today's priorities in one place, run a Focus Session timer, let PrimeCal find an open slot automatically, and manage delegation and dependencies.

Focus Mode

A stripped-down Experience Mode that opens on what is happening now and leaves out the rest — a calendar with Now, Day, and Agenda, and a simple task list.

Focus Mode And Live Focus

Use PrimeCal live Focus, clean focus mode, and hidden Focus labels to reduce distraction without hiding events from Month or Week views.

Gadget Catalog

Every Gadget available for Screens today, organized by who it's built for, plus what's coming next.

Getting Started

Start here for the real PrimeCal first-run flow: registration, onboarding, calendar setup, groups, and the first event.

Glossary

Definitions for key PrimeCal terms — calendars, events, views, sharing, automation, and more.

Glossary

Definitions of key PrimeCal terms — calendars, events, automation, sync, and developer concepts.

Google Calendar Sync

Connect your Google Calendar to PrimeCal so your Google events appear alongside your PrimeCal events.

Google Sync Problems

Fix Google Calendar sync issues in PrimeCal — reconnecting accounts, missing events, and handling duplicates.

Household Inventory

Track shared household items with shelf-life and low-stock-quantity awareness so PrimeCal can raise a restock task before you run out.

Household Items API

Code-backed reference for shared household inventory, shelf-life tracking, low-stock quantity thresholds, and marking items used up or consumed.

Initial Setup

Create your first real calendar, organize calendar groups, and prepare the PrimeCal sidebar for daily use.

Introduction To Screens

Learn what Screens & Gadgets are, how they fit into PrimeCal, and how to get started with your first wallboard.

Invitations API

Code-backed reference for the invitations a person can answer - people groups, seats on a plan, or both together - the pending list, the answers, seat capacity and the invitation email.

Inviting Attendees

PrimeCal does not send meeting invitations to attendees. Here is what actually happens with attendee data, and what to use instead.

Keyboard Shortcuts

Speed up your PrimeCal workflow with keyboard shortcuts for navigation, view switching, and event creation.

Kid Mode

A safe, simplified Experience Mode for children ages 4-8, protected by a PIN so only a grown-up can exit it.

Language and Locale

Change PrimeCal's interface language and locale settings — available in English, Hungarian, German, and French.

Login Problems

Fix the most common reasons you cannot sign in to PrimeCal, including expired sessions, wrong credentials, and OAuth errors.

Managing Bookings

Review confirmation, payment, retry, and follow-up behavior for PrimeCal public bookings.

Managing External Attendees

PrimeCal does not send invitations to people outside PrimeCal. What synced external attendee data looks like, and what to use instead.

Managing Your Subscription

Upgrade, change billing period, add seats and see your current plan from the PrimeCal Subscription page.

MCP Event Listing Best Practices

Recommended request shapes for PrimeCal MCP event retrieval, including compact field sets, pagination patterns, and recurrence usage.

MCP Server Architecture

High-level architecture of the PrimeCal MCP server — transport, authentication, permissions, and error mapping.

Microsoft 365 Sync Problems

Fix Microsoft 365 and Outlook calendar sync issues in PrimeCal — reconnecting accounts, missing events, and permission errors.

Microsoft Teams Integration

Post PrimeCal event notifications to Microsoft Teams channels using automation webhooks, and sync Teams meeting invites via Microsoft 365.

Mobile App Issues

Fix common problems with the PrimeCal mobile app on Android and iOS, including blank screens, outdated content, and navigation issues.

Mobile App Overview

PrimeCal brings your full calendar experience to your phone as a mobile-optimized web app — the same application you use in the browser, adapted for touch.

Mobile vs. Web Features

Compare what's available in PrimeCal's mobile app versus the web — they share the same features, with a few presentation differences.

Mobile Widgets

Add PrimeCal widgets to your iPhone or Android home screen for at-a-glance access to your upcoming events.

Navigating the Calendar

Learn how to move around PrimeCal — switching views, jumping to dates, showing and hiding calendars, and using keyboard shortcuts.

Network Errors

Diagnose and fix network errors you see when using PrimeCal, including connection failures, timeout errors, and sync failures.

Notification Classes Reference

The five notification priority classes, their default routing behavior, the inbox-rule actions that can override them, and the notification lifecycle states with the entity/column backing each one.

Notification Not Received

Troubleshoot missing event reminders, email notifications, and in-app notification issues in PrimeCal.

Notification Preferences

Control which PrimeCal notifications you receive, how they're delivered, and what priority they get.

Notifications API

Code-backed reference for inbox listing, preferences, devices, filters, rules, mutes, notification threads, priority classification, Mode Packs, and digests.

OAuth Authorization Server (MCP)

How PrimeCal's OAuth 2.1 + PKCE + Dynamic Client Registration authorization server behaves for MCP clients - the grant flow, code and token rules, error responses, the 401 challenge and discovery.

OAuth Issues

Fix OAuth authorization errors when connecting Google or Microsoft accounts to PrimeCal.

Offline Mode

Understand how PrimeCal handles poor connectivity and what works when you're offline.

Organization API

Code-backed reference for organisation creation, membership, active-organisation switching, branding, and Stripe Connect administration.

Paid Bookings

Enable paid booking types, understand pending payment confirmation, and review the customer payment experience in PrimeCal.

Pairing A Device

How to pair a physical display to your PrimeCal account and assign it a Screen.

Payments and Invoices

How PrimeCal takes payment through Paddle, where to find invoices, how to update a card, and what happens when a payment fails.

Performance Issues

Fix sluggish calendar loading, slow event rendering, and high memory usage when using PrimeCal.

Permission Errors

Understand and resolve PrimeCal permission errors including FEATURE_NOT_ENTITLED, PLAN_LIMIT_REACHED, and calendar access denied messages.

Permission Levels

What Read, Write, Admin, and Owner mean in PrimeCal calendar sharing.

Personal Logs

Review your private PrimeCal activity history, privacy actions, and personal account records.

Personal Logs API

Code-backed reference for the signed-in user's personal audit feed and summary endpoints.

Planner Mode

An Experience Mode for full diaries — the calendar opens on the work week with a tighter grid that shows more of the day, and every tool stays within reach.

Plans and Billing

PrimeCal plans, pricing, upgrades, payment, invoices, cancellation and refunds.

Plans and Billing FAQ

Self-serve upgrades, downgrades, cancellation, refunds, invoices, seats, and what to do when a feature seems missing.

Plans and Pricing

What each PrimeCal plan costs, how many seats it includes, and which features and limits come with it.

Platform API

Code-backed reference for health checks, feature flags, monitoring, frontend error ingestion, and security report endpoints.

Pool Booking

Configure resource-type pool booking, understand bookingMode choices, and document how PrimeCal prices multi-resource reservations.

Pool Booking API

Code-backed contract for bookingMode configuration, requestedQuantity semantics, pricing mathematics, and public pool-booking payloads.

Post-Payment Customer Linking

How PrimeCal resolves or creates customer accounts after a successful public booking payment, and what the API returns.

PrimeCal Calendar Events List v2

Breaking-change reference for the compact PrimeCal MCP event-listing contract, including timezone behavior, recurrence expansion, pagination, and field selection.

PrimeCal Documentation

Start with registration, move into daily planning, then continue into automation, MCP, sync, and the full API reference.

PrimeCal Reservations Availability v2

Reference for the PrimeCal MCP reservation availability v2 contract, including UTC timestamps, logical timezone metadata, and userTimezone overrides.

PrimeCal Reservations Create v2

Reference for PrimeCal MCP reservation creation v2, including UTC-normalized success responses and AI-friendly conflict and payment error bodies.

Privacy Policy

The Privacy Policy governing PrimeCal is published on the marketing site — this page points there.

Profile Page

Manage account identity, preferences, labels, theme, focus filters, and password settings from the PrimeCal profile screen.

Publishing a Public Calendar

PrimeCal does not support publishing a calendar to the public today. Here is what sharing options actually exist.

Push Notifications

Enable browser and mobile push notifications in PrimeCal to get real-time alerts about your events.

Recurring Events

Set up events that repeat automatically on a daily, weekly, or monthly schedule so you never have to re-enter your regular routines.

Refund Policy

The Refund Policy governing PrimeCal is published on the marketing site — this page points there.

Rescheduling by Dragging

Move events between days and time slots by dragging, understand conflict warnings, and undo a move.

Resource API

Code-backed reference for active-organisation resource types, concrete resources, pricing configuration, and public booking token helpers.

Resource Availability

Configure organisation-level and resource-level opening hours so PrimeCal only offers bookable slots that match your real availability.

Resource Management

How to edit, deactivate, delete, and maintain bookable resources in PrimeCal, including schedule modes and capacity child lanes.

Responding to Invitations

PrimeCal has no RSVP feature — no Accept/Decline/Maybe buttons and no pending-invitation state. Respond where the invitation actually came from.

Routine Templates API

Code-backed reference for routine templates, items, cloning, on-demand instantiation, streaks, skipping, and the household fairness view.

Routines and Templates

Build or clone chore templates, choose automatic or manual-only triggering, assign fair rotation, start a routine on schedule/by hand/from automation, skip an occurrence, and track completion streaks.

Screens API

Code-backed reference for Screens, Gadgets, Screen Templates, Devices, and the Device Content endpoints.

Searching Events

Find any event quickly by searching titles, descriptions, locations, and notes across all your calendars.

Security And Privacy FAQ

Practical answers about passwords, MFA, Personal Logs, privacy exports, deletion requests, and what user privacy controls actually mean in PrimeCal.

Security Best Practices

Practical steps every PrimeCal user can take to protect their account, calendars, and shared data.

Setting Up Booking Links

Create organisation booking links, choose the right service and payment settings, and verify the public flow in English and Hungarian.

Sharing Calendars

How to share a PrimeCal calendar with specific people and manage their access.

Simple Mode

An Experience Mode that shows just the appointments — larger text, a plain agenda, roomier rows, and only the buttons that matter.

Skins & Appearance

Skins change how PrimeCal looks — colors, fonts, and spacing — without changing what you can do. Learn how they differ from Experience Modes.

Slack Integration

Send PrimeCal event notifications to Slack using automation webhooks.

Smart Rescheduling

Let a booking that can move step aside automatically when something else is placed on top of it, with a preview and one Undo.

Smart Values

Use dynamic data from events and webhooks inside your automation conditions.

Smart Values Reference

Complete reference of automation smart value paths available by trigger type in PrimeCal.

Smart-Home Automation

Call a real smart-home device's REST API from a rule, and let a webhook or scheduled trigger start a routine on demand.

Standard Mode

Standard (called Production in earlier versions) is the default Experience Mode — every PrimeCal feature is visible and available.

Stripe and Paid Bookings

How paid booking confirmation works in PrimeCal, the booking state machine, and the API surfaces for billing and public bookings.

Support Contact

How to get help with PrimeCal — where to look and how to reach us.

System Requirements

What you need to use PrimeCal — supported browsers, mobile OS versions, and network requirements.

Tasks API

Code-backed reference for task CRUD, task labels, focus, focus sessions, auto-scheduling, delegation, dependencies, checklists, and label attachment.

Tasks Workspace

Capture, organize, and complete tasks in PrimeCal with labels, due dates, checklists, drag-to-rank ordering, a two-field Quick Task capture flow, archiving, focus sessions, and routines — all in one unified Tasks hub.

Team Collaboration Tips

Practical habits for using PrimeCal effectively with a family, team, or group — from shared calendars to automation rules everyone benefits from.

Templates And Sharing

How to save a Screen layout as a reusable Template, use the built-in system Templates, and share layouts within a group or organisation.

Terms of Service

The Terms of Service governing use of PrimeCal are published on the marketing site — this page points there.

Time Tracking

What time-tracking capabilities exist in PrimeCal today and how to approximate time logging using calendar events.

Time Zone Handling

How to set your timezone in PrimeCal and what that means for events, external calendar sync, and scheduling across regions.

Trigger Reference

Complete enumeration of all automation trigger types in PrimeCal, with trigger type values, required config fields, and availability notes.

Triggers And Conditions

Learn the trigger types, condition fields, and operators supported by PrimeCal automation rules.

Troubleshooting FAQ

Practical checks for missing events, quiet Focus view, stale sync, task placement, automation misses, and AI agent permission issues in PrimeCal.

User API

Code-backed reference for profile settings, language, permissions, user search, and current-user bootstrap routes.

User Documentation

Daily PrimeCal workflows for profile settings, calendars, tasks, automation, external sync, AI agents, and personal logs.

User Group API

Code-backed reference for people groups, invitations, members, and group-based calendar sharing.

Using PrimeCal on Your Phone

PrimeCal works as a mobile-optimized web app on iPhone and Android — no app store required. Sign in from your phone's browser with your existing account.

Validation Errors

Understand HTTP 400 Bad Request validation errors in PrimeCal, including form field errors, DTO validation failures, and content type rejections.

Viewing Attendee Status

PrimeCal can display an attendee list and RSVP status on events synced in from Google or Microsoft 365 — read-only, not something PrimeCal tracks natively.

Webhook API

The technical contract for PrimeCal's incoming automation webhook receiver — URL, required HMAC signature, headers, and rate limits.

Webhook Failures

Fix PrimeCal automation webhook failures — token issues, payload format, connection errors, and debugging tips.

Webhooks

Let external systems trigger your automation rules by sending a POST request to PrimeCal.

What Are Resources?

Understand the Resource concept in PrimeCal — what resources are, how they relate to resource types and bookings, and when to use them.

What Is PrimeCal?

An introduction to PrimeCal — who it's for, what it does, and why it might be exactly the calendar you've been looking for.

Working Hours Configuration

How to represent your working hours in PrimeCal using recurring events, so your schedule is clear to you and anyone who shares your calendar.